25897855

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 34372800

約数和(自身を除く): 8474945

約数列:

[1, 5, 19, 41, 61, 95, 109, 205, 305, 545, 779, 1159, 2071, 2501, 3895, 4469, 5795, 6649, 10355, 12505, 22345, 33245, 47519, 84911, 126331, 237595, 272609, 424555, 631655, 1363045, 5179571, 25897855]

約数ペア:

[(1, 25897855), (5, 5179571), (19, 1363045), (41, 631655), (61, 424555), (95, 272609), (109, 237595), (205, 126331), (305, 84911), (545, 47519), (779, 33245), (1159, 22345), (2071, 12505), (2501, 10355), (3895, 6649), (4469, 5795)]